Roth, Charles H.
Prentice-Hall, 1982
Buku Teks
Middleton, Robert Gordon, 1908-
Reston Publishing, 1970
Buku Referensi
Ritter-Sanders Jr, Miles
Reston Publishing , 1977
Buku Referensi
Fakultas Teknik Universitas Indonesia, 1995
UI - Skripsi Membership
Douglas-Young, John
Parker Publishing Company, 1979
Buku Referensi